Finding the Fourth Proportional to 210,871.02, 316,306.74 and 86,212.02
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Solution
The fourth proportional to 210,871.02, 316,306.74 and 86,212.02 is: 129,318.12
Step by Step Solution
- Step 1: Write the proportion equation
210,871.02 : 316,306.74 = 86,212.02 : x - Step 2: Convert to fraction form
210,871.02/316,306.74 = 86,212.02/x - Step 3: Cross multiply
210,871.02x = 316,306.74 × 86,212.02 - Step 4: Simplify right side
210,871.02x = 27,269,442,995.01 - Step 5: Solve for x
x = 27,269,442,995.01/210,871.02 - Step 6: Final answer
x = 129,318.12
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.